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vioreltusandClaude Opus 5.5
5e415cdd34
* Fix #2812: Intel Macs skip wgpu's indirect-call validation shaders Metal's Intel compiler aborts on wgpu's indirect-validation compute shaders ("Compiler encountered an internal error"; MTLCompilerService crashes in reportUnsupportedMaxWorkGroupSizeMetadataError), the device is lost inside request_device and GridCraft exits before its window opens. GridCraft issues no indirect draws or dispatches, so on Intel Macs the instance leaves VALIDATION_INDIRECT_CALL out; WGPU_VALIDATION_INDIRECT_CALL=1 turns it back on. Every other platform keeps wgpu's default. Same as WordCraft (#2652 there). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01JadgGo4G2GHaAMNb3qyygk * Review: test that WGPU_VALIDATION_INDIRECT_CALL=1 still turns it on; qualify the doc line The override is checked in a child test process with the variable set, since tests can't set environment variables without unsafe code. The revision line no longer says Intel Macs start: OpenCore Legacy Patcher Macs on macOS 15 can still fail on the MSL version (#1116). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01JadgGo4G2GHaAMNb3qyygk --------- Co-authored-by: Claude <noreply@anthropic.com>
30 lines
3.9 KiB
Markdown
30 lines
3.9 KiB
Markdown
# Hardware parity
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> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-31 · **Change:** trivial (Intel Mac start-up) · **Target:** Microsoft Excel (Microsoft 365), Excel for Mac 16.113.4
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The hardware Excel uses, per platform, against GridCraft. Part of
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[target-app-parity.md](target-app-parity.md). **Hardware: ~40% ready, 25–40 h** (estimated).
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| Hardware feature | Excel | GridCraft (macOS · Windows · Linux · BSD · web) | Gap and estimate |
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|---|---|---|---|
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| Multi-core recalculation | Multi-threaded recalculation on all cores (Windows and Mac), configurable thread count | Single-threaded everywhere (no threading in `crates/calc`) | Parallel recalc of independent dependency chains on native builds; WASM stays single-threaded or uses workers later: 12–18 h |
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| GPU rendering of the grid and charts | DirectX / Metal accelerated drawing | wgpu: Metal (Intel Macs skip wgpu's indirect-call validation shaders, which Metal's Intel compiler aborts on, #2812) · DirectX 12 (default since 10-08; OpenGL when DirectX 12 has no GPU driver or fails to start; Vulkan only on request, so the Intel UHD `igvk64.dll` crash (#120) can't happen; shaders compiled with FXC, so no DXC runtime is needed, #339) · Vulkan/GL · Vulkan/GL · WebGPU or WebGL2 | At parity in kind. Driver problems: screen flashing on Windows 11 (#76): 2–4 h |
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| Pen and touch (Draw tab) | Pen pressure and tilt, eraser end, touch mode, Ink to Shape, ink replay | Pen, highlighter, eraser, Ink to Shape with mouse/pen input; **no pressure or tilt**, no touch mode | Pressure-sensitive strokes where winit reports force; touch-friendly ribbon spacing: 4–6 h |
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| Trackpad and mouse | Smooth scrolling, pinch zoom, horizontal scroll, Magic Mouse | Smooth scrolling and zoom via egui | Verify pinch zoom on each platform: 1–2 h |
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| Multiple windows and monitors | One window per workbook, New Window for the same workbook, per-monitor DPI | A native window per workbook window on the desktop, New Window for the same workbook; new windows cascade from the last one on its monitor; View › Arrange All tiles, stacks or cascades them over the main window's monitor (web: one window) | Arrange All across monitors; verify per-monitor DPI with windows on two monitors: 2–3 h |
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| High-DPI and display scaling | yes | yes (display scale matched to desktop density; View › Interface size 75–200 % on top, #230) | — |
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| Accessibility hardware (screen readers, braille displays, switch control) | Narrator, JAWS, NVDA, VoiceOver | AccessKit enabled in eframe; grid cells and ribbon not yet exposed as an accessible tree | Counted under UI ([ui-parity.md](ui-parity.md)) |
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| Printers | System print with driver options | Desktop submits through craft-print with printer choice, copies, duplex and grayscale; web browser printing | Counted under print |
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## Revision history
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| Date | Change | Summary |
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|---|---|---|
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| 2026-10-31 | trivial | macOS: Intel Macs skip wgpu's indirect-call validation shaders, so they no longer exit on Metal's compiler error there (#2812). Macs run with OpenCore Legacy Patcher on macOS 15 can still fail earlier, on the MSL version (#1116). |
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| 2026-10-22 | minor | View › Arrange All over the main window's monitor. |
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| 2026-10-22 | minor | Multiple windows: each workbook window is a native window of its own (desktop). |
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| 2026-10-12 | minor | Desktop File > Print now discovers printers and submits PDF jobs through pinned craft-print with printer choice, copies, duplex and grayscale; browser printing and PDF export remain available. Remaining print parity includes page ranges and driver-specific tray/options UI; physical printer fidelity needs hardware validation. |
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| 2026-10-11 | trivial | Windows: DirectX 12 shaders compiled with FXC, no DXC runtime needed (#339, #354) |
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| 2026-10-11 | trivial | Windows: OpenGL fallback when DirectX 12 has no GPU or fails to start; Vulkan never by default (#120) |
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| 2026-10-10 | major | Created: single-threaded calc, wgpu rendering, no pen pressure, single window |
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